Louis Ginzberg and Moses Beer, Jewish Encyclopedia — Baer, Issachar ben Solomon
“ Solomon, the Wilna gaon, and like him was distinguished for simplicity and lucidity in commenting on Biblical and rabbinical topics. Besides Bible and Talmud, Baer studied mathematics and geography. His commentary on the Pentateuch, the manuscript of which was burned a few years ago, followed a double method: explaining first the simple, literal meaning of the text, like Rashi, Ibn Ezra, and Nahmanides; secondly, giving to it a philosophical and sometimes a mystical interpretation. He left also a commentary on the Talmud and Shulhan 'Aruk. ”
